Cold Worked (+C550) 1.4104 Stainless Steel
EN 1.4104 +C550 steel is EN 1.4104 stainless steel in the cold worked (strain hardened) condition. The graph bars on the material properties cards below compare EN 1.4104 +C550 steel to: wrought martensitic stainless steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
200 GPa 28 x 106 psi
Elongation at Break
17 %
Fatigue Strength
300 MPa 43 x 103 psi
Poisson's Ratio
0.28
Shear Modulus
77 GPa 11 x 106 psi
Shear Strength
400 MPa 58 x 103 psi
Tensile Strength: Ultimate (UTS)
650 MPa 94 x 103 psi
Tensile Strength: Yield (Proof)
490 MPa 71 x 103 psi
Thermal Properties
Latent Heat of Fusion
280 J/g
Maximum Temperature: Corrosion
410 °C 760 °F
Maximum Temperature: Mechanical
860 °C 1570 °F
Melting Completion (Liquidus)
1440 °C 2620 °F
Melting Onset (Solidus)
1390 °C 2540 °F
Specific Heat Capacity
480 J/kg-K 0.11 BTU/lb-°F
Thermal Conductivity
25 W/m-K 14 BTU/h-ft-°F
Thermal Expansion
10 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
2.5 % IACS
Electrical Conductivity: Equal Weight (Specific)
2.9 % IACS
Otherwise Unclassified Properties
Base Metal Price
8.5 % relative
Density
7.7 g/cm3 480 lb/ft3
Embodied Carbon
2.2 kg CO2/kg material
Embodied Energy
30 MJ/kg 13 x 103 BTU/lb
Embodied Water
120 L/kg 14 gal/lb
Common Calculations
PREN (Pitting Resistance)
18
Resilience: Ultimate (Unit Rupture Work)
100 MJ/m3
Resilience: Unit (Modulus of Resilience)
620 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
25 points
Strength to Weight: Axial
23 points
Strength to Weight: Bending
22 points
Thermal Diffusivity
6.7 mm2/s
Thermal Shock Resistance
23 points
Alloy Composition
| Fe | 78.8 to 84.1 | |
| Cr | 15.5 to 17.5 | |
| Mn | 0 to 1.5 | |
| Si | 0 to 1.0 | |
| Mo | 0.2 to 0.6 | |
| S | 0.15 to 0.35 | |
| C | 0.1 to 0.17 | |
| P | 0 to 0.040 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Further Reading
EN 10088-3: Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
EN 10088-1: Stainless steels - Part 1: List of stainless steels
Corrosion of Stainless Steels, A. John Sedriks, 1996
Advances in Stainless Steels, Baldev Raj et al. (editors), 2010